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Case 580B Fluid Questions

580Bhoe

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Joined
Mar 11, 2025
Messages
59
Location
NorCal/AZ
Picked up a 75 580B which is my first backhoe, that I need to do some matience.

I've done a good amount of research on here and I have the service manual & operators manual (thanks John) and I can not find some information.

First Fluids:
I want to do a complete service/fluid change on the machine and based on what's posted here can someone please!ease confirm;
b lube (1).jpg


1) Transaxle runs 17 Qts of 85W/90 gear oil what's best for theconfusion1975 metals....GL4. Or GL5 ?

2) Shuttle fill is the hex nut just below the deck plate, just in front of the shifter?
2-A) And it runs ??? Quarts of TCH or Case Hytran Ultra? (Is there anything else that is good to run in here, I see people running TS traveller premium?)

3)I have a 4 speed manual with no hi-lo, I believe this is called a power shuttle and it has a torque converter and the Torque tube pick up? Is the fill for torque converter the same as the "torque tube resivor? And is it located some where else or is it the "shuttle" fill in front of the shifter?

4) Is there a problem, or will it create problems, running standard hydraulic fluid for the hydraulic system? If standard hydraulic fluid is ok, what fluid should I run 38, 46, or 68? Backhoe operates in winter 15-20*F on the low end and 80-85* on the high end. Also the whole system is 24 gallons with 11 gallon in the loader arms resivors?

5) What coolant should I run in the system?

6) What fluid should I run in the power steering system?

7) What is the belt pulley system and what fluid should I run in there?

8) Can I (is it recommended), run Shell Rotella T5. Synthetic, 5W-40 in the motor?

9) I'm going to run With on all the oil and air filters, what's best for two fuel filters Donaldson or Baldwin?
 

MG84

Senior Member
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Jan 6, 2023
Messages
1,397
Location
Virginia
I've never worked on a 580B, but on later models the torque converter/shuttle transmission is ahead of the main transmission and will have a dipstick/fill tube similar to that of an auto trans on a car. On those models its located in the engine compartment. The converter/shuttle is the one place you really need to run the proper Case TCH fluid, do not run any TSC brand or other cheap hyd fluid.

Any regular GL4/5 80w90 is fine for the rear axle and any decent quality hydraulic fluid is fine for the hydraulics. I run Mobile 424, JD Hygard, or Kubota UDT. The cheap TSC traveler stuff is ok here, but it's not going to have as good of additives as the better stuff (seal conditioners, etc). Engine oil I'd run Rotella 15w40 conventional, with the age/hours it probably wouldn't like a thin synthetic like 5w40. Not sure on the power steering system and in a backhoe application you won't have a belt pulley. I just run the standard green Prestone coolant in all my older stuff. Hopefully someone with a 580B can come along and help with the actual fill port locations, etc.
 

580Bhoe

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Joined
Mar 11, 2025
Messages
59
Location
NorCal/AZ
Here's a picture of the left side of the engine compartment. Is the TC filler tube some where in here?

20250321_135640.jpg
 

580Bhoe

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Joined
Mar 11, 2025
Messages
59
Location
NorCal/AZ
I've never worked on a 580B, but on later models the torque converter/shuttle transmission is ahead of the main transmission and will have a dipstick/fill tube similar to that of an auto trans on a car. On those models its located in the engine compartment. The converter/shuttle is the one place you really need to run the proper Case TCH fluid, do not run any TSC brand or other cheap hyd fluid.

Any regular GL4/5 80w90 is fine for the rear axle and any decent quality hydraulic fluid is fine for the hydraulics. I run Mobile 424, JD Hygard, or Kubota UDT. The cheap TSC traveler stuff is ok here, but it's not going to have as good of additives as the better stuff (seal conditioners, etc). Engine oil I'd run Rotella 15w40 conventional, with the age/hours it probably wouldn't like a thin synthetic like 5w40. Not sure on the power steering system and in a backhoe application you won't have a belt pulley. I just run the standard green Prestone coolant in all my older stuff. Hopefully someone with a 580B can come along and help with the actual fill port locations, etc.
Would you run T4 (dino) 15W-40 in 15*F temps, it's kept outside without a block heater.

They also have T5 syntheric 10W-30, but I figured 40 would be better for the summers.
 

MG84

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Jan 6, 2023
Messages
1,397
Location
Virginia
Would you run T4 (dino) 15W-40 in 15*F temps, it's kept outside without a block heater.
Yes, that's what all my older diesels get and our temps range from -10F to 90F. Just let it warm up for 10-15min in the really cold temps. Shuttle/TC fill tube is usually on the right side of the machine, again just guessing on yours as it's earlier than any I've dealt with.
 

580Bhoe

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Mar 11, 2025
Messages
59
Location
NorCal/AZ
Closest case dealer is 260 miles round trip but John Deere and New Holland both have dealers close.

Is there a John Deere or Ford/New Holland fluids that will work as a GOOD substitute for TCH or Hytran?
 

580Bhoe

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Mar 11, 2025
Messages
59
Location
NorCal/AZ
As far as hydraulic fluid for the hydraulic system. Is Chevron 424 better than AW46?


And is there anything else the hydraulic system powers other than the hydraulics (loader, boom, stabilizers), in other words it's a sealed system that only powers/feeds the cylinders?
 

MG84

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Location
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So I have a manual shuttle with a 4 speed (no high low), does this set up even have a torque converter?
So you have a clutch pedal you have to use to shift the shuttle?

As far as hydraulic fluid for the hydraulic system. Is Chevron 424 better than AW46?


And is there anything else the hydraulic system powers other than the hydraulics (loader, boom, stabilizers), in other words it's a sealed system that only powers/feeds the cylinders?
Hydraulic system only powers loader/hoe, not sure on using the AW oils in it, I've always used tractor hydraulic fluid because that's what I have.
 

1978case

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Mar 29, 2025
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AR
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Retired
Torque converter/power shuttle with 4sp transaxle

in regards to #2 above is this the shuttle fill? Yes
 

580Bhoe

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Mar 11, 2025
Messages
59
Location
NorCal/AZ
Crawled under the machine and took some pictures to verify drain ports.

1) these 2 drain nuts are for the shuttle and torque converter. 1 on front of bell housing and one on rear/tail of transmission/shuttle housing...correct?
20250329_084243.jpg
20250329_084317.jpg



2) one on right rear of transaxle housing is drain for transaxle?
20250329_084106.jpg



3) there is a fill plug on the top right of the bell housing what is this for?
20250329_084337.jpg



4) When I drain the shuttle, how do I drain the torque conver too so I can empty the whole system instead of just doing a partial fluid change?
 

1978case

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AR
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Retired
You are correct on the drain plugs.
The one on top of the bell housing is for timing marks on flywheel.
The torque converter in enclosed in the torque tube, (that is what the forward plug drains). So you can't do a total drain. The middle plug is right under the F/R clutch packs. The rear plug is the transaxle (90wt).
 

Eric a1cnc

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Sep 18, 2020
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249
Location
New hampshire
You might find a larger drain plug below the torque converter.

Once that is removed/drained, rotate the torque converter till you see a drain plug on it.

That is how the older ck's worked and the B's I think are the same
 

Eric a1cnc

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Sep 18, 2020
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249
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New hampshire
Just re-read your earlier post about a clutch.

If you have a dry clutch Pretty sure there is no torque converter.

One way to tell if you have a shuttle or dry clutch machine is if you have a gauge on the dash that says converter pressure or something like that. When you step on the "Clutch" pedal that gauge will change if you have one.

Pretty sure, No gauge means dry clutch
 

580Bhoe

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Joined
Mar 11, 2025
Messages
59
Location
NorCal/AZ
Just re-read your earlier post about a clutch.

If you have a dry clutch Pretty sure there is no torque converter.

One way to tell if you have a shuttle or dry clutch machine is if you have a gauge on the dash that says converter pressure or something like that. When you step on the "Clutch" pedal that gauge will change if you have one.

Pretty sure, No gauge means dry clutch
I have a pressure gauge on the dash and it does drop when I depress the clutch.

From what I understand both models have torque converters to decouple from the crank, one is a manual Shuttle which shift between gears and one is a "power shuttle" which shifts gears like an auto trans.
 

MG84

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Location
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I have a pressure gauge on the dash and it does drop when I depress the clutch.

From what I understand both models have torque converters to decouple from the crank, one is a manual Shuttle which shift between gears and one is a "power shuttle" which shifts gears like an auto trans.
The manual vs power shuttle only refers to forward/reverse, none have power shift on the main transmission (like an automatic). Even the torque converter/power shuttle models you have to manually shift the 4spd transmission.

With the power shuttle you just let off the throttle and flip the lever to go forward/reverse, even while moving. Manual shuttle you have to push the clutch before moving the forward/reverse lever, and I believe you should be stopped or close to stopped.
 
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